Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

erect or ascending, 1–9(–17) cm underground, strigulose.

mostly reduced to phyllodia, few with leaflets, 0.8–10 cm;

stipules connate-sheathing throughout, 2–7 mm, papery-scarious;

leaflets 0(or 3–5), blades (phyllodia) oblanceolate to linear, 4–30 mm, apex acute, mucronate, or spinulose, surfaces strigose;

terminal leaflet often confluent with rachis.

sparse or nearly bladeless and rushlike, 2–11 cm;

stipules connate-sheathing and papery-scarious at proximal nodes, mostly distinct and herbaceous at distal nodes, (1–)2–7 mm;

leaflets 3–13 or distal leaves reduced to rachis (phyllodia), blades linear, linear-filiform, linear-elliptic, or elliptic, 5–30 × 0.5–4 mm, apex acute, surfaces strigulose;

terminal leaflet sometimes decurrent and not jointed to rachis.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

3–25-flowered, flowers ascending to declined;

axis 2–20(–23) cm in fruit;

bracts 0.5–2.3 mm;

bracteoles 0–2.

erect or ascending, outer ones often prostrate in fruit, 0.4–9 cm.

incurved-ascending, 1–14 cm.

0.3–1.7 mm.

1–8 mm.

5.7–9.5 mm;

calyx 2.6–5 mm, strigose, tube 1.9–3.4 mm, lobes subulate, 0.5–2.5 mm;

corolla pink purplish to ochroleucous or whitish;

banner recurved through 45°;

keel 4–6 mm.

(6.6–)7.6–11.2 mm;

calyx 4–6.3 mm, black-strigose and/or white-strigose, tube 3.4–5.4 mm, lobes triangular-subulate, 0.5–1.4 mm;

corolla ochroleucous, sometimes tinged or veined with purple or pink;

banner abruptly recurved through 90°;

keel (6.2–)6.5–9.4 mm, apex broadly triangular.

erect, pale green tinged purple, with red-mottle, becoming brown or stramineous, straight or slightly curved, lanceoloid to lanceoloid-oblong, 2-sided, laterally compressed, 4–13 × 1.5–3.3 mm, papery, usually strigose, rarely glabrous;

sessile.

pendulous to spreading, green, purple, or mottled, becoming stramineous, straight, linear, narrowly oblong, or oblanceoloid, laterally compressed, bicarinate, 13–50(–53) × 2.3–5 mm, papery, strigose;

sessile.

4–12.

11–26.

= 24.